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Code Sample, a copy-pastable example
import pandas as pd
pd.DataFrame({"i": [0, 1, 2], "b": [False, False, True], "s": ["x", "y", "z"]}).quantile(q=0.5, numeric_only=True)
Problem description
numpy/numpy#16273 (comment) broke the case of NumPy's percentile
with bools which causes to break pandas pandas' quantile
too. If this is considered as not a bug, I would expect pandas to handle it with numeric_only
. Cross filed issue in NumPy: numpy/numpy#19154
Currently it throws an exception as below:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/.../python3.8/site-packages/pandas/core/frame.py", line 9266, in quantile
result = data._mgr.quantile(
File "/.../python3.8/site-packages/pandas/core/internals/managers.py", line 491, in quantile
block = b.quantile(axis=axis, qs=qs, interpolation=interpolation)
File "/.../python3.8/site-packages/pandas/core/internals/blocks.py", line 1592, in quantile
result = nanpercentile(
File "/.../python3.8/site-packages/pandas/core/nanops.py", line 1675, in nanpercentile
return np.percentile(values, q, axis=axis, interpolation=interpolation)
File "<__array_function__ internals>", line 5, in percentile
File "/.../python3.8/site-packages/numpy/lib/function_base.py", line 3818, in percentile
return _quantile_unchecked(
File "/.../python3.8/site-packages/numpy/lib/function_base.py", line 3937, in _quantile_unchecked
r, k = _ureduce(a, func=_quantile_ureduce_func, q=q, axis=axis, out=out,
File "/.../python3.8/site-packages/numpy/lib/function_base.py", line 3515, in _ureduce
r = func(a, **kwargs)
File "/.../python3.8/site-packages/numpy/lib/function_base.py", line 4064, in _quantile_ureduce_func
r = _lerp(x_below, x_above, weights_above, out=out)
File "/.../python3.8/site-packages/numpy/lib/function_base.py", line 3961, in _lerp
diff_b_a = subtract(b, a)
TypeError: numpy boolean subtract, the `-` operator, is not supported, use the bitwise_xor, the `^` operator, or the logical_xor function instead.
Expected Output
i 1.0
b 0.0
Name: 0.5, dtype: float64
Output of pd.show_versions()
INSTALLED VERSIONS
------------------
commit : 2cb96529396d93b46abab7bbc73a208e708c642e
python : 3.8.8.final.0
python-bits : 64
OS : Darwin
OS-release : 20.4.0
Version : Darwin Kernel Version 20.4.0: Thu Apr 22 21:46:47 PDT 2021; root:xnu-7195.101.2~1/RELEASE_X86_64
machine : x86_64
processor : i386
byteorder : little
LC_ALL : None
LANG : en_US.UTF-8
LOCALE : en_US.UTF-8
pandas : 1.2.4
numpy : 1.20.3
pytz : 2021.1
dateutil : 2.8.1
pip : 21.0.1
setuptools : 52.0.0.post20210125
Cython : None
pytest : 6.2.4
hypothesis : None
sphinx : 3.0.4
blosc : None
feather : None
xlsxwriter : None
lxml.etree : None
html5lib : None
pymysql : None
psycopg2 : None
jinja2 : 2.11.3
IPython : 7.23.1
pandas_datareader: None
bs4 : 4.9.3
bottleneck : None
fsspec : None
fastparquet : None
gcsfs : None
matplotlib : 3.2.2
numexpr : None
odfpy : None
openpyxl : 3.0.7
pandas_gbq : None
pyarrow : 4.0.0
pyxlsb : None
s3fs : None
scipy : 1.6.3
sqlalchemy : 1.4.14
tables : None
tabulate : 0.8.9
xarray : None
xlrd : 1.2.0
xlwt : None
numba : None